game-physics

I want to build my own 2D mini-physics engine, that will include(for now) rigid bodys, and constraints (joints, contacts, springs...). And I've tried to figure out what is the right order of the phases, when I start a timestep, when the the general phases are: Broadphase, Narrow phase(Collision Detection, and Contact generation), Resolution (Constraints Solver), and the Integration - hope you can tell me the right order. I allso have general questions about each phase: Narrow Phase - When I've found a collision do I need to seperate the bodies after I've found the collision or just apply an

I am making a simple game in which i have a ball and an arc revolving around the center. When user touches the screen the ball moves in the direction of pointer and hits the arc. But i am not able to find any method to detect that collision An image has been attached for better understanding Game image Debug Snapshot.. I have a circle bound around my ball... What i am doing is Detecting the point of intersection of ball center and circle on which arc is >revolving. But i am not able to detect whether the arc was there when ball intersected the circle?? please help...:'( Code for making arc:

My goal is to make a single collision detection that will decrease the movement speed of the object it collided with for a specific duration. What I tried so far: //Class that detects the collision if (other.gameObject.tag == "enemy") { EnemyMovement enemyMove = other.GetComponent <EnemyMovement> (); if (enemyMove.slowMove != 1) { return; } enemyMove.Slow (2, 0.5f, true); //.... //Class that handles the Enemy-Movement //The slowfactor gets multiplied with the Vector3 that handles the movementspeed of the Character void FixedUpdate () { Movement(); } void Movement() { gegnerRigid.MovePosition

I am developing a simple game in which a character fly when you tap/click the screen. keep tapping the character will fly (some what similar to flappy bird and jet pack). However the movement is not smooth at all, as of jet pack. Here is sample of my code. Varaible Initilization maxSpeedLimit = spriteHeight/10; speed = maxSpeedLimit/2; //half of the max speed touch event public void onTapOrClick(int action) { if (action == UP) { sprite.up= true; } else { sprite.up = false; } } Sprite update called from game loop public void update() { if (up) { y -= speed; //fly up } else { y += speed;// fly

I'm currently in the middle of writing a game like Breakout, and I was wondering how I could properly bounce a ball off a surface. I went with the naive way of rotating the velocity by 90 degrees, which was: [vx, vy] -> [-vy, vx] Which (unsurprisingly) didn't work so well. If I know the position and veocity of the ball, as well as the point the ball would hit (but is going to instead bounce off of) how can I bounce it off that point? Constraints: I'm using integer math (No FP anywhere) All my surfaces are simple flat surfaces (Vertical, horizontal, or a block) I only want to bounce off in a 90

I am trying to create a simple javascript game with simple physics. I can determine when 2 balls are colliding but I have having problems with handling the collision. Does anyone know of any useful tutorials on this? I've been searching the internet for a couple days but can't seem to find anything. In the UK, this would be A-level maths, so not too advanced. I think the phrase you need is " elastic collision ". That page has some of the formulae you need. Physics for JavaScript Games, Animation, and Simulations with HTML5 Canvas is a Book all about modeling Physics simulations in JavaScript.